Surgical drill



FIG. 1 is a perspective view of a surgical drill showing my new design;

FIG. 2 is side view thereof;

FIG. 3 is a side view of FIG. 2 rotated 180 degrees;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof. 

The ornamental design for a surgical drill, as shown and described. 